Some time ago I started an internal project to simplify working with animations and transitions when making games in Java.
It was used in some of our games, for example ZombieRockers to make different kind of effects like fade in/out of screens or the points messages when scoring, or in JSnakes to make camera effects like zoom in/out, camera movement, etc.
After using it on our games, it became more clear what kind of things are possible with it.
This video shows some working examples of the project:
You can download a runnable jar to test the features shown in the video.
The project is on development, so right now there are a lot of things to improve starting by making easy to understand examples.
I plan to add more posts explaining some design decisions and showing how to use the library.
Hope Java developers could find some use for it.